Halcyon Days is the reissue of English singer and songwriter Ellie Goulding's second studio album, Halcyon (2012). It was released on 23 August 2013 by Polydor Records. Following the release of Halcyon, Goulding announced that she had plans to repackage the original album, with new songs that focused on electronic music. For the reissue Goulding recorded ten new songs and worked with a variety of producers, including Ryan Tedder, Calvin Harris and Greg Kurstin, to create her desired sound. Goulding and the producers created a synthpop album that takes influence from indie pop, dream pop, alternative dance and features positive lyrics in contrast to her previous releases.